{"image_url":null,"height":"190","author_url":"https://blog.hatena.ne.jp/winebarrel/","title":" \u554f\u984c1.7","author_name":"winebarrel","blog_url":"https://so-wh.at/","url":"https://so-wh.at/entry/20070317/p5","version":"1.0","provider_url":"https://hatena.blog","provider_name":"Hatena Blog","description":"\u50d5\u306e\u89e3\u7b54 \u3042\u3093\u307e\u308a\u5927\u304d\u3044/\u5c0f\u3055\u3044\u6570\u3060\u3068\u30012\u4e57\u3057\u305f\u3068\u304d\u306b\u7cbe\u5ea6\u5916\u306e\u5024\u306b\u306a\u308b\u304b\u3089\u2026\u304b\u306a\uff1f \u3042\u305f\u3089\u3057\u3044sqrt\u306f\u3053\u3093\u306a\u611f\u3058\u3002 (define (average x y) (/ (+ x y) 2)) (define (improve guess x) (average guess (/ x guess))) (define (good-enough? pre-guess guess) (< (abs (- pre-guess guess)) 0.001)) (define (sqrt-iter pre-guess guess x) (if (good-enough? pre-guess guess) \u2026","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fso-wh.at%2Fentry%2F20070317%2Fp5\" title=\" \u554f\u984c1.7 - so what\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","type":"rich","blog_title":"so what","published":"2007-03-17 00:00:02","width":"100%","categories":["SICP"]}